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Pooja had to find the area of box. So to find the length and breadth she used a metre scale. But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8cm. what is the length measured?
- a)10 cm
- b)12.8 cm
- c)8.8 cm
- d)Cannot be measured.
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Pooja had to find the area of box. So to find the length and breadth s...
Understanding Parallax Error
Parallax error occurs when the position of the observer’s eye is not aligned with the measurement scale, leading to inaccurate readings. This is especially common in analog measuring instruments like rulers and gauges.
Why Option C is Correct
- **Direct Eye Alignment**: Ensuring the eye is directly above the point of measurement allows the observer to view the scale without any angular distortion.
- **Accurate Readings**: When the eye is aligned, the reading taken will reflect the true position of the measurement mark. This minimizes discrepancies and provides a reliable value.
Why Other Options are Incorrect
- **Option A - Place the scale at an angle**:
- This increases the chances of parallax error as the angle distorts the view of the measurement.
- **Option B - Read the measurement from a distance**:
- Viewing from a distance can also lead to misinterpretation of the measurement due to perspective issues.
- **Option D - Use a broken scale**:
- A broken scale would inherently provide inaccurate measurements, compounding the issue rather than resolving it.
Conclusion
To avoid parallax error effectively, always ensure that your eye is positioned directly above the measurement point. This approach guarantees accuracy and reliability in your readings, making it a fundamental practice in measurement techniques.
Parallax error occurs when the position of the observer’s eye is not aligned with the measurement scale, leading to inaccurate readings. This is especially common in analog measuring instruments like rulers and gauges.
Why Option C is Correct
- **Direct Eye Alignment**: Ensuring the eye is directly above the point of measurement allows the observer to view the scale without any angular distortion.
- **Accurate Readings**: When the eye is aligned, the reading taken will reflect the true position of the measurement mark. This minimizes discrepancies and provides a reliable value.
Why Other Options are Incorrect
- **Option A - Place the scale at an angle**:
- This increases the chances of parallax error as the angle distorts the view of the measurement.
- **Option B - Read the measurement from a distance**:
- Viewing from a distance can also lead to misinterpretation of the measurement due to perspective issues.
- **Option D - Use a broken scale**:
- A broken scale would inherently provide inaccurate measurements, compounding the issue rather than resolving it.
Conclusion
To avoid parallax error effectively, always ensure that your eye is positioned directly above the measurement point. This approach guarantees accuracy and reliability in your readings, making it a fundamental practice in measurement techniques.
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Pooja had to find the area of box. So to find the length and breadth s...
To avoid parallax error, the eye should be directly above the point of measurement.
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Pooja had to find the area of box. So to find the length and breadth she used a metre scale. But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8cm. what is the length measured?a)10 cmb)12.8 cmc)8.8 cmd)Cannot be measured.Correct answer is option 'C'. Can you explain this answer?
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Pooja had to find the area of box. So to find the length and breadth she used a metre scale. But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8cm. what is the length measured?a)10 cmb)12.8 cmc)8.8 cmd)Cannot be measured.Correct answer is option 'C'. Can you explain this answer? for Class 6 2024 is part of Class 6 preparation. The Question and answers have been prepared according to the Class 6 exam syllabus. Information about Pooja had to find the area of box. So to find the length and breadth she used a metre scale. But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8cm. what is the length measured?a)10 cmb)12.8 cmc)8.8 cmd)Cannot be measured.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 6 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Pooja had to find the area of box. So to find the length and breadth she used a metre scale. But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8cm. what is the length measured?a)10 cmb)12.8 cmc)8.8 cmd)Cannot be measured.Correct answer is option 'C'. Can you explain this answer?.
Pooja had to find the area of box. So to find the length and breadth she used a metre scale. But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8cm. what is the length measured?a)10 cmb)12.8 cmc)8.8 cmd)Cannot be measured.Correct answer is option 'C'. Can you explain this answer? for Class 6 2024 is part of Class 6 preparation. The Question and answers have been prepared according to the Class 6 exam syllabus. Information about Pooja had to find the area of box. So to find the length and breadth she used a metre scale. But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8cm. what is the length measured?a)10 cmb)12.8 cmc)8.8 cmd)Cannot be measured.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 6 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Pooja had to find the area of box. So to find the length and breadth she used a metre scale. But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8cm. what is the length measured?a)10 cmb)12.8 cmc)8.8 cmd)Cannot be measured.Correct answer is option 'C'. Can you explain this answer?.
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